diff --git a/README.md b/README.md
old mode 100644
new mode 100755
diff --git a/flake.lock b/flake.lock
old mode 100644
new mode 100755
diff --git a/flake.nix b/flake.nix
old mode 100644
new mode 100755
diff --git a/home.nix b/home.nix
old mode 100644
new mode 100755
diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index 8766cec..e5c3ecf 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -1,32 +1,21 @@
 # Edit this configuration file to define what should be installed on
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, ... }:
+
 {
-  config,
-  pkgs,
-  ...
-}: {
-  imports = [
-    # Include the results of the hardware scan.
-    ./hardware-configuration.nix
-  ];
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
 
   # Bootloader.
-  boot.loader.grub.enable = true;
-  boot.loader.grub.device = "/dev/sda";
-  boot.loader.grub.useOSProber = true;
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
 
-  boot.initrd.luks.devices."luks-1a4418a8-689c-4826-b589-c574f25c8ba5".device = "/dev/disk/by-uuid/1a4418a8-689c-4826-b589-c574f25c8ba5";
-  # Setup keyfile
-  boot.initrd.secrets = {
-    "/crypto_keyfile.bin" = null;
-  };
-
-  boot.loader.grub.enableCryptodisk = true;
-
-  boot.initrd.luks.devices."luks-955d08e0-c2b1-4cc1-9318-24baa423d4d2".keyFile = "/crypto_keyfile.bin";
-  boot.initrd.luks.devices."luks-1a4418a8-689c-4826-b589-c574f25c8ba5".keyFile = "/crypto_keyfile.bin";
-  networking.hostName = "hydra"; # Define your hostname.
+  boot.initrd.luks.devices."luks-1cd83c7a-abab-419f-8e7b-c907f234a00f".device = "/dev/disk/by-uuid/1cd83c7a-abab-419f-8e7b-c907f234a00f";
+  networking.hostName = "lena"; # Define your hostname.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
 
   # Configure network proxy if necessary
diff --git a/nixos/hardware-configuration.nix b/nixos/hardware-configuration.nix
old mode 100644
new mode 100755